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Changed ray README.md #2885

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Changed ray README.md #2885

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9 changes: 5 additions & 4 deletions contrib/ray/README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -54,6 +54,7 @@ kubectl get pod -l app.kubernetes.io/component=kuberay-operator -n kubeflow
# NAME READY STATUS RESTARTS AGE
# kuberay-operator-5b8cd69758-rkpvh 1/1 Running 0 6m23s
```
> If you are creating a new namespace other than the kubeflow-user-example-com please follow below step otherwise skip the step.
## Step 3: Create a namespace
```sh
# Create a namespace: example-"development"
Expand All @@ -74,7 +75,7 @@ kubectl label namespace development istio-injection=enabled
node-ip-address: $(hostname -I | tr -d ' ' | sed 's/\./-/g').raycluster-istio-headless-svc.development.svc.cluster.local
```

## Step 3: Install RayCluster
## Step 4: Install RayCluster
```sh
# Create a RayCluster CR, and the KubeRay operator will reconcile a Ray cluster
# with 1 head Pod and 1 worker Pod.
Expand All @@ -95,17 +96,17 @@ kubectl get svc -n $MY_KUBEFLOW_USER_NAMESPACE
* Python 3.11
* Ray 2.23.0

## Step 4: Forward the port of Istio's Ingress-Gateway
## Step 5: Forward the port of Istio's Ingress-Gateway
* Follow the [instructions](https://github.com/kubeflow/manifests/tree/v1.7-branch#port-forward) to forward the port of Istio's Ingress-Gateway and log in to Kubeflow Central Dashboard.

## Step 5: Create a JupyterLab via Kubeflow Central Dashboard
## Step 6: Create a JupyterLab via Kubeflow Central Dashboard
* Click "Notebooks" icon in the left panel.
* Click "New Notebook"
* Select `kubeflownotebookswg/jupyter-scipy:v1.9.0` as OCI image (or any other with the same python version)
* Click "Launch"
* Click "CONNECT" to connect into the JupyterLab instance.

## Step 6: Use Ray client in the JupyterLab to connect to the RayCluster
## Step 7: Use Ray client in the JupyterLab to connect to the RayCluster
* As I mentioned in Step 3, Ray is very sensitive to the Python versions and Ray versions between the server (RayCluster) and client (JupyterLab) sides.
```sh
# Check Python version. The version's MAJOR and MINOR should match with RayCluster (i.e. Python 3.11.9)
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